so with the ever increasing difficulty of BTC mining (starting to slow and perhaps may level off and eventually decrease,) and the less popular NMC mining situation (involving high difficulties lately driven by BTC hoppers trying to make a quick buck from massive drops in difficulty) there seems to be a need for more than just 1 or 2 virtual currencies to help with liquidity in the markets... if we had more virtual currency options it would give hope and more speculation for high earnings due to very low difficulty from starting up...
but the one variable that seems to be haunting is the massive hopping around which skyrockets the difficulty...
see:
http://consciouseconomics.org/why-multiple-currencies-are-good-eco-scienceI proposed creating the LQC or Liquid Coin for the sole purpose of increasing liquidity for all currencies based on some intuition